5db5-equalizer-lv2-bin

maintainer orphaned · 0 votes · base 5db5-equalizer · scanned 2026-08-03 00:08:14.047287
MEDIUM
View on AUR ↗
Why flagged This PKGBUILD installs prebuilt binary shared libraries (.so files) for an audio plugin from a proprietary vendor (Audio Assault, audioassault.mx). The source is an S3 bucket (5db5public.s3.amazonaws.com) which is a plausible vendor-controlled distribution host for a small audio plugin company, not a random personal bucket. The URL pattern and plugin name are consistent with the vendor's product page linked in the url= field. A sha256 checksum is provided, which mitigates substitution risk at build time. However, the concern is real: prebuilt binary blobs (.so libraries that get loaded into audio hosts) from a non-official package repository, distributed via an S3 bucket with no source code, represent a genuine supply-chain risk — if the S3 object were replaced, users who don't verify checksums would execute arbitrary code. The license is a proprietary EULA. This is a classic medium-severity case: executed binary from an unofficial/vendor-controlled host with no source, but with a checksum and a plausible legitimate vendor connection.

Triggered rules

MEDIUM source=() URL on a non-standard host source_untrusted_domain

One or more source=() URLs point to a host outside the trusted allowlist (github.com, gitlab.com, codeberg.org, pypi.org, …).

  • PKGBUILD:11 source=('https://5db5public.s3.amazonaws.com/Equalizer551Linux.zip')
MEDIUM AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): This PKGBUILD installs prebuilt binary shared libraries (.so files) for an audio plugin from a proprietary vendor (Audio Assault, audioassault.mx). The source is an S3 bucket (5db5public.s3.amazonaws.com) which is a plausible vendor-controlled distribution host for a small audio plugin company, not a random personal bucket. The URL pattern and plugin name are consistent with the vendor's product page linked in the url= field. A sha256 checksum is provided, which mitigates substitution risk at build time. However, the concern is real: prebuilt binary blobs (.so libraries that get loaded into audio hosts) from a non-official package repository, distributed via an S3 bucket with no source code, represent a genuine supply-chain risk — if the S3 object were replaced, users who don't verify checksums would execute arbitrary code. The license is a proprietary EULA. This is a classic medium-severity case: executed binary from an unofficial/vendor-controlled host with no source, but with a checksum and a plausible legitimate vendor connection.

PKGBUILD

1 offending line(s) highlighted
1pkgbase=5db5-equalizer
2pkgname=( ${pkgbase}-{lv2,vst3}-bin )
3pkgver=1.0.0
4pkgrel=2
5arch=('x86_64')
6url="https://audioassault.mx/plugin/Equalizer551"
7license=('EULA')
8depends=('alsa-lib' 'bzip2' 'brotli' 'freetype2' 'glibc' 'graphite' 'harfbuzz' 'keyutils' 'krb5' 'libcurl-gnutls' 'libffi' 'libnghttp2' 'libidn2' 'libp11-kit' 'libpng' 'libpsl' 'libssh2' 'libtasn1' 'libunistring' 'libxau' 'libxcb' 'libx11' 'nettle' 'openssl' 'pcre2' 'zlib' 'zstd')
9makedepends=('xdg-user-dirs')
10provides=('5db5-equalizer')
11source=('https://5db5public.s3.amazonaws.com/Equalizer551Linux.zip')
12sha256sums=('0a4bb2ab6a4d79624b4be04ad74fc05e06515ca9edef33011393d14987897354')
13
14package_5db5-equalizer-lv2-bin() {
15 ## Install LV2 Plugin
16 pkgdesc="British Style EQ (LV2)"
17 groups=('pro-audio' 'lv2-plugins')
18 install -Dm755 "$srcdir/Equalizer551.lv2/Equalizer551.so" "$pkgdir/usr/lib/lv2/Equalizer551.lv2/Equalizer551.so"
19 install -Dm644 "$srcdir/Equalizer551.lv2/dsp.ttl" "$pkgdir/usr/lib/lv2/Equalizer551.lv2/dsp.ttl"
20 install -Dm644 "$srcdir/Equalizer551.lv2/manifest.ttl" "$pkgdir/usr/lib/lv2/Equalizer551.lv2/manifest.ttl"
21 install -Dm644 "$srcdir/Equalizer551.lv2/ui.ttl" "$pkgdir/usr/lib/lv2/Equalizer551.lv2/ui.ttl"
22}
23
24package_5db5-equalizer-vst3-bin() {
25 ## Install VST3 Plugin
26 pkgdesc="British Style EQ (VST3)"
27 groups=('pro-audio' 'vst3-plugins')
28 install -Dm755 "$srcdir/Equalizer551.vst3/Contents/Resources/moduleinfo.json" "$pkgdir/usr/lib/vst3/Equalizer551.vst3/Contents/Resources/moduleinfo.json"
29 install -Dm755 "$srcdir/Equalizer551.vst3/Contents/x86_64-linux/Equalizer551.so" "$pkgdir/usr/lib/vst3/Equalizer551.vst3/Contents/x86_64-linux/Equalizer551.so"
30}
31

Scan history

Scanned at (UTC)SeverityRules
2026-08-03 00:08:14 MEDIUM 2
2026-08-02 00:16:08 MEDIUM 2
2026-08-01 00:11:18 MEDIUM 2
2026-07-31 00:14:10 MEDIUM 2
2026-07-30 00:17:23 MEDIUM 2
2026-07-29 00:25:53 MEDIUM 2
2026-07-28 00:07:28 MEDIUM 2
2026-07-27 00:24:32 MEDIUM 2
2026-07-26 00:07:32 MEDIUM 2
2026-07-25 00:13:44 MEDIUM 2
2026-07-24 00:02:28 MEDIUM 2
2026-07-23 00:14:47 MEDIUM 2
2026-07-22 00:29:32 MEDIUM 2
2026-07-21 00:24:15 MEDIUM 2
2026-07-20 00:19:49 MEDIUM 2
2026-07-19 00:17:08 MEDIUM 2
2026-07-18 00:14:48 MEDIUM 2
2026-07-17 00:06:16 MEDIUM 2
2026-07-16 00:05:41 MEDIUM 2
2026-07-15 00:09:25 MEDIUM 2

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